Using StallGuard for limit probing

[spitzbubchen]

I have the Duet3D board and I am wondering if this wrapper allows homing/centering using StallGuard? Basically I would like to move the actuator to one end (point A) and detect the limit position with StallGuard, then move to the other end (point B) to get the other position, and finally move to the center (B - A)/2.

[AndyEveritt]

I believe this would be possible, although I haven't tried it.

https://duet3d.dozuki.com/Wiki/Stall_detection_and_sensorless_homing

I would try just sending the gcode command you would normally in DWC and see if the Duet returns a meaningful response when the stall occurs (my guess is it doesn't). If no response is sent, then you could repeatedly poll the object model (OM) of the printer until it is "idle" (ie a stall has happened and the printer has stopped moving), then read the xyz position from the OM.

There is probably a better solution but this would be my first approach